diff --git a/roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2 b/roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2
index bf03e6040..fdcfeaa25 100644
--- a/roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2
+++ b/roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2
@@ -54,6 +54,7 @@ spec:
     - --allocate-node-cidrs=true
     - --cluster-cidr={{ kube_pods_subnet }}
     - --service-cluster-ip-range={{ kube_service_addresses }}
+    - --node-cidr-mask-size={{ kube_network_node_prefix }}
 {% endif %}
 {% if kube_feature_gates %}
     - --feature-gates={{ kube_feature_gates|join(',') }}